CN108791693B - Underwater deformation displacement compensation system - Google Patents
Underwater deformation displacement compensation system Download PDFInfo
- Publication number
- CN108791693B CN108791693B CN201810643662.9A CN201810643662A CN108791693B CN 108791693 B CN108791693 B CN 108791693B CN 201810643662 A CN201810643662 A CN 201810643662A CN 108791693 B CN108791693 B CN 108791693B
- Authority
- CN
- China
- Prior art keywords
- switch valve
- group
- compensation
- clamping
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/13—Hulls built to withstand hydrostatic pressure when fully submerged, e.g. submarine hulls
Abstract
The invention relates to an underwater deformation displacement compensation system, which comprises a seawater pump, wherein a first filter for filtering inlet seawater is arranged at the inlet of the seawater pump, a second filter for preventing the seawater pump from being damaged is arranged at the outlet of the seawater pump, and an overflow valve for setting the highest pressure and a second switch valve for dismounting a water bag are also connected in parallel on a pipeline of the seawater pump, the first filter and the second filter in series; the second filter is also connected with a first switch valve in series, a first station of the first switch valve is connected with a clamping mechanism for clamping the pressure-resistant shell through a pipeline, and a second station of the first switch valve is connected with a compensation mechanism for compensating the contraction or expansion of the pressure-resistant shell through a pipeline. The invention not only can automatically compensate the deformation of the pressure shell and resist the influence of unbalance loading, but also has the function of transmitting the positive buoyancy of the pressure shell by rigidly connecting the pressure shell with the frame.
Description
Technical Field
The invention relates to the field of hydraulic systems, in particular to an underwater deformation displacement compensation system.
Background
An underwater manned submersible vehicle is a vehicle for carrying scientists and engineering technicians to enter deep sea to perform various underwater operations and other tasks. In order to complete a series of related operation tasks of scientific investigation, the underwater vehicle is required to have a reliable structural design to ensure the safety of various devices and personnel.
The conventional underwater manned submersible vehicle can be divided into an external frame, a light shell structure and a pressure-resistant shell structure according to the structure, and the external frame and the light shell are not easy to deform in deep sea. The pressure shell bears external pressure in water, the pressure inside the shell is normal pressure, and the seawater pressure changes correspondingly along with the deepening motion of the submersible vehicle, so that the pressure shell deforms. If the deformation of the pressure shell is small and can be ignored, only a rigid welding connection mode is needed between the frame and the pressure shell. If the deformation of the pressure-resistant shell is large, stress concentration is easily generated at the welding seam by adopting a welding connection mode, so that the welding seam is broken, the pressure-resistant shell is cracked, and even the pressure-resistant shell is separated from the frame, and the life safety of people carrying the submersible vehicle body and personnel on the submersible vehicle is seriously threatened.
Disclosure of Invention
The applicant carries out research and improvement aiming at the existing problems and provides an underwater deformation displacement compensation system which can automatically compensate the deformation of a pressure shell and resist the influence of unbalance loading, has the function of transmitting the positive buoyancy of the pressure shell, avoids the problem of stress concentration at the welding position of the existing structure and improves the underwater safety of the underwater manned submersible vehicle.
The technical scheme adopted by the invention is as follows:
an underwater deformation displacement compensation system comprises a seawater pump, wherein a first filter for filtering inlet seawater is arranged at an inlet of the seawater pump, a second filter for preventing the seawater pump from being damaged is arranged at an outlet of the seawater pump, and an overflow valve for setting the highest pressure and a first switch valve for disassembling and assembling a water sac are further connected in parallel on a pipeline of the seawater pump, the first filter and the second filter in series; a second switch valve is also connected in series with the second filter, a first station of the second switch valve is connected with a clamping mechanism for clamping the pressure-resistant shell through a pipeline, and a second station of the second switch valve is connected with a compensation mechanism for compensating the contraction or expansion of the pressure-resistant shell through a pipeline;
the clamping mechanism comprises a plurality of clamping group water bags which are uniformly distributed on the periphery of the pressure shell along the circumferential direction in the radial direction and a clamping switch valve group for preventing the pressure shell from deviating, and damping holes are formed in pipelines communicated with the clamping group water bags and respectively provided with pressure sensors;
the compensation mechanism also comprises a plurality of compensation group water bags which are uniformly distributed on the periphery of the pressure shell along the circumferential direction in the radial direction and compensation switch valve groups used for compensating the shell shrinkage, and damping holes are also formed in pipelines communicated with the compensation group water bags and pressure sensors are respectively arranged on the pipelines.
The clamping switch valve group comprises a clamping group first switch valve, a clamping group second switch valve, a clamping group third switch valve and a clamping group fourth switch valve which are arranged on the water bag pipelines of the adjacent clamping groups;
the compensation switch valve group comprises a compensation group first switch valve, a compensation group second switch valve, a compensation group third switch valve and a compensation group fourth switch valve which are arranged on the adjacent compensation group water bag pipelines.
The invention has the following beneficial effects:
the invention has simple structure and convenient use, can avoid the problem of weld cracking caused by direct welding between the pressure-resistant shell and the frame, takes seawater as a working medium, does not need to increase an oil tank, avoids the pollution of hydraulic oil to the seawater, has the same pressure of each water bag of the clamping group in the diving movement without external load, and reduces the pressure in the water bag as the pressure-resistant shell shrinks and the compression amount of the water bag is released along with the increase of the water depth; the water bags of the compensation group are communicated and connected with the pump, the pressure is kept unchanged, and when the pressure shell shrinks, the volume of each water bag of the compensation group is increased to compensate the shrinkage of the pressure shell. When the pressure in the water bag of the clamping group is reduced to a set value, the clamping group and the compensation group are switched to realize function exchange. The invention not only can automatically compensate the deformation of the pressure shell and resist the influence of unbalance loading, but also has the function of transmitting the positive buoyancy of the pressure shell by rigidly connecting the pressure shell with the frame.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein: 1. an overflow valve; 2. a first filter; 3. a sea water pump; 4. a second filter; 5. a first on-off valve; 6. a second on-off valve; 71. a compensation group first switch valve; 72. a compensation group second switch valve; 73. a compensation group third switch valve; 74. the compensation group fourth switching valve; 81. a clamping group first switch valve; 82. a clamping group second switch valve; 83. a clamping group third on-off valve; 84. clamping the fourth switch valve of the group; 9. a damping hole; 10. a pressure sensor.
Detailed Description
The following describes specific embodiments of the present invention.
As shown in fig. 1, the underwater deformation displacement compensation system comprises a seawater pump 3, wherein a first filter 2 for filtering inlet seawater is arranged at an inlet of the seawater pump 3, a second filter 4 for preventing the seawater pump 3 from being damaged is arranged at an outlet of the seawater pump 3, and an overflow valve 1 for setting the highest pressure and a first switch valve 5 for dismounting a water bag are further connected in parallel on a pipeline of the seawater pump 3, the first filter 2 and the second filter 4 in series; a second switch valve 6 is also connected in series with the second filter 4, a first station of the second switch valve 6 is connected with a clamping mechanism for clamping the pressure casing through a pipeline, and a second station of the second switch valve 6 is connected with a compensation mechanism for compensating the contraction or expansion of the pressure casing through a pipeline.
As shown in fig. 1, the clamping mechanism includes a plurality of clamping group water bags radially and uniformly distributed on the circumference of the pressure casing along the circumferential direction, and a clamping switch valve group for preventing the pressure casing from deviating, and damping holes 9 are provided on the pipelines communicated with the clamping group water bags, and pressure sensors 10 are respectively arranged on the pipelines. The clamping group switch valve group comprises a clamping group first switch valve 81, a clamping group second switch valve 82, a clamping group third switch valve 83 and a clamping group fourth switch valve 84 which are arranged on the pipelines of the adjacent clamping group water bags.
As shown in fig. 1, the compensation mechanism also includes a plurality of compensation group water bags radially distributed on the periphery of the pressure casing along the circumferential direction, and each compensation switch valve group for compensating the casing shrinkage, and a damping hole 9 and a pressure sensor 10 are also arranged on a pipeline communicated with each compensation group water bag. The compensation switch valve group comprises a compensation group first switch valve 71, a compensation group second switch valve 72, a compensation group third switch valve 73 and a compensation group fourth switch valve 74 which are arranged on the pipelines of the adjacent compensation group water bags.
According to the invention, the contact area between the upper hemisphere of each water bag and the pressure-resistant shell is larger, the contact area between the lower hemisphere of each water bag and the pressure-resistant shell is small, the positive buoyancy of the pressure-resistant shell can be transferred to the whole submersible, and the pressure-resistant shell is ensured to keep centering under the action of the positive buoyancy.
The specific working mode of the invention is as follows:
diving conditions are as follows: when the submersible vehicle is in the diving motion, the seawater pump 3 is normally opened to operate at the lower power. As shown in fig. 1, when the first switch valve 5 operates in the left position and the second switch valve 6 also operates in the left position, the group a is a clamping mechanism, the group B is a compensation mechanism, and the clamping group first switch valve 81, the clamping group second switch valve 82, the clamping group third switch valve 83 and the clamping group fourth switch valve 84 in the group a clamping mechanism are in an off state for preventing the pressure casing from shifting under the unbalanced load, and the clamping group water bags in the off state are independent from each other and are not communicated with the seawater pump 3. The water bags of the clamping group of the clamping mechanism have the same pressure under the action of no unbalance loading and different pressure under the action of unbalance loading, so that the water bags have the function of resisting unbalance loading. And the compensation group first switch valve 71, the compensation group second switch valve 72, the compensation group third switch valve 73 and the compensation group fourth switch valve 74 in the compensation mechanism B are in a conducting state and are used for compensating the contraction of the pressure-resistant shell, and in the conducting state, the compensation group water bags in the compensation mechanism B are mutually connected and communicated with the seawater pump 3. When the pressure of the water bag in the group A clamping mechanism is reduced to a lower limit value, each pressure sensor 10 judges that the pressure of the water bag in the group A clamping mechanism is equal (no unbalance loading action is ensured), the compensation switch valve bank in the group B compensation mechanism is closed at first, the clamping switch valve bank in the group A clamping mechanism is opened, the second switch valve 6 is switched to the right position, the group A clamping mechanism is converted into the group A compensation mechanism, the group B compensation mechanism is converted into the group B clamping mechanism, and the circulation is repeated, so that the underwater displacement compensation system can effectively compensate the contraction of the pressure-resistant shell and can resist the deviation of the pressure-resistant shell under the unbalance loading action.
The floating working condition is as follows: when the submersible is in floating motion, the seawater pump 3 normally operates at low power, the first switch valve 5 works at the left position, the second switch valve 6 also works at the left position, the group A is a clamping mechanism, the group B is a compensation mechanism, and the clamping group first switch valve 81, the clamping group second switch valve 82, the clamping group third switch valve 83 and the clamping group fourth switch valve 84 in the group A clamping mechanism are in an off state and used for preventing the pressure-resistant shell from deviating under the action of unbalance loading, and the clamping group water bags are mutually independent and are not communicated with the seawater pump 3 in the off state. The water bags of the clamping group of the clamping mechanism have the same pressure under the action of no unbalance loading and different pressure under the action of unbalance loading, so that the water bags have the function of resisting unbalance loading. And the compensation group first switch valve 71, the compensation group second switch valve 72, the compensation group third switch valve 73 and the compensation group fourth switch valve 74 in the compensation mechanism B are in a conducting state and are used for compensating the expansion of the pressure-resistant shell, and in the conducting state, the compensation group water bags in the compensation mechanism B are mutually connected and communicated with the seawater pump 3. When the pressure of the water bag in the group A clamping mechanism is increased to an upper limit value, each pressure sensor 10 judges that the pressure of the water bag in the group A clamping mechanism is equal (no unbalance loading action is ensured), firstly, a compensation switch valve group in the group B compensation mechanism is closed, then, the clamping switch valve group in the group A clamping mechanism is opened, a second switch valve 6 is switched to the right position, the group A clamping mechanism is converted into the group A compensation mechanism, the group B compensation mechanism is converted into the group B clamping mechanism, and the circulation is repeated, so that the underwater displacement compensation system can effectively compensate the expansion of the pressure-resistant shell and can resist the deviation of the pressure-resistant shell under the unbalance loading action.
Disassembling and assembling the water bag: when the water bags are installed, the water bags which are not filled with water are installed between the pressure shell and the frame, after the water bags are installed, the first switch valve 5 is located at the left position, the second switch valve 6 is located at the right position, the clamping group first switch valve 81, the clamping group second switch valve 82, the clamping group third switch valve 83 and the clamping group fourth switch valve 84 are switched on, the seawater pump 3 is started to fill water into the water bags, after the water bags are filled with water, the clamping group first switch valve 81, the clamping group second switch valve 82, the clamping group third switch valve 83 and the clamping group fourth switch valve 84 are switched off, then the second switch valve 6 is switched to the left position, and the compensation group first switch valve 71, the compensation group second switch valve 72, the compensation group third switch valve 73 and the compensation group fourth switch valve 74 are switched on. When the pressure-resistant casing is disassembled, the first switch valve 5 is arranged at the right position, the volume of each water bag is reduced after water in each water bag is discharged, and then each water bag is disassembled from the pressure-resistant casing and the frame.
The invention has simple structure and convenient use, can avoid the problem of weld cracking caused by direct welding between the pressure-resistant shell and the frame, takes seawater as a working medium, does not need to increase an oil tank, avoids the pollution of hydraulic oil to the seawater, has the same pressure of each water bag of the clamping group in the diving movement without external load, and reduces the pressure in the water bag as the pressure-resistant shell shrinks and the compression amount of the water bag is released along with the increase of the water depth; the water bags of the compensation group are communicated and connected with the pump, the pressure is kept unchanged, and when the pressure shell shrinks, the volume of each water bag of the compensation group is increased to compensate the shrinkage of the pressure shell. When the pressure in the water bag of the clamping group is reduced to a set value, the clamping group and the compensation group are switched to realize function exchange. The invention not only can automatically compensate the deformation of the pressure shell and resist the influence of unbalance loading, but also has the function of transmitting the positive buoyancy of the pressure shell by rigidly connecting the pressure shell with the frame.
The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, the scope of the invention being defined by the appended claims, which may be modified in any manner without departing from the basic structure thereof.
Claims (3)
1. Deformation displacement compensation system under water, its characterized in that: the seawater pump device comprises a seawater pump (3), wherein a first filter (2) for filtering inlet seawater is arranged at an inlet of the seawater pump (3), a second filter (4) for preventing the seawater pump (3) from being damaged is arranged at an outlet of the seawater pump (3), and an overflow valve (1) for setting the highest pressure and a first switch valve (5) for dismounting a water sac are connected in parallel on a pipeline in series connection with the seawater pump (3), the first filter (2) and the second filter (4); a second switch valve (6) is also connected in series with the second filter (4), a first station of the second switch valve (6) is connected with a clamping mechanism for clamping the pressure shell through a pipeline, and a second station of the second switch valve (6) is connected with a compensation mechanism for compensating the contraction or expansion of the pressure shell through a pipeline;
the clamping mechanism comprises a plurality of clamping group water bags which are uniformly distributed on the periphery of the pressure shell along the circumferential direction in the radial direction and a clamping switch valve group for preventing the pressure shell from deviating, and damping holes (9) are formed in pipelines communicated with the clamping group water bags and respectively provided with pressure sensors (10);
the compensation mechanism also comprises a plurality of compensation group water bags which are uniformly distributed on the periphery of the pressure shell along the circumferential direction in the radial direction and compensation switch valve groups for compensating the shell shrinkage, and damping holes (9) are also formed in pipelines communicated with the compensation group water bags and pressure sensors (10) are respectively arranged on the pipelines.
2. The underwater deformation displacement compensation system of claim 1, wherein: the clamping switch valve group comprises a clamping group first switch valve (81), a clamping group second switch valve (82), a clamping group third switch valve (83) and a clamping group fourth switch valve (84) which are arranged on the adjacent clamping group water bag pipelines.
3. The underwater deformation displacement compensation system of claim 1, wherein: the compensation switch valve group comprises a compensation group first switch valve (71), a compensation group second switch valve (72), a compensation group third switch valve (73) and a compensation group fourth switch valve (74) which are arranged on the adjacent compensation group water bag pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643662.9A CN108791693B (en) | 2018-06-21 | 2018-06-21 | Underwater deformation displacement compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643662.9A CN108791693B (en) | 2018-06-21 | 2018-06-21 | Underwater deformation displacement compensation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108791693A CN108791693A (en) | 2018-11-13 |
| CN108791693B true CN108791693B (en) | 2020-02-07 |
Family
ID=64083933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810643662.9A Active CN108791693B (en) | 2018-06-21 | 2018-06-21 | Underwater deformation displacement compensation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108791693B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200126552A (en) * | 2019-04-30 | 2020-11-09 | 삼성전자주식회사 | Resist Filtering System Having Multi Filters and an Apparatus Having the Resist Filtering System |
| CN112141260A (en) * | 2020-09-09 | 2020-12-29 | 江苏科技大学 | Annular deep sea pressure-resistant shell |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2403018B1 (en) * | 2011-11-07 | 2014-03-26 | Navantia, S.A. | DRY REFUGE TO INCREASE THE OPERATING CAPACITY OF A SUBMARINE. |
| CN105197183B (en) * | 2015-09-15 | 2017-05-03 | 江苏科技大学 | Self-balancing pressure-resistant casing device |
| CN206090889U (en) * | 2016-10-14 | 2017-04-12 | 江苏永和高分子技术有限公司 | Expansion compensation seam shielding water pocket |
| CN206146595U (en) * | 2016-10-14 | 2017-05-03 | 江苏永和高分子技术有限公司 | Expansion compensation seam shielding water pocket test bench |
| CN106516057B (en) * | 2016-10-28 | 2018-08-24 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of hydraulic system for adjusting complete extra large deep diving hydrophone buoyancy |
| CN107244380A (en) * | 2017-05-18 | 2017-10-13 | 江苏科技大学 | A kind of submersible pneumatic shell |
| CN108087401A (en) * | 2017-11-29 | 2018-05-29 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of resistance to laminate of deep-sea platform and frame jointing |
| CN108180186B (en) * | 2017-12-05 | 2019-08-13 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Deep-sea deformation gap compensates binding clasp automatically |
-
2018
- 2018-06-21 CN CN201810643662.9A patent/CN108791693B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108791693A (en) | 2018-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108791693B (en) | Underwater deformation displacement compensation system | |
| EP2310665B1 (en) | Wave actuated pump and means of connecting same to the seabed | |
| CN101462585B (en) | Underwater fixed depth releasing device | |
| CN110901866B (en) | Rapid buoyancy adjusting system for small and medium-sized underwater unmanned aircraft | |
| CN107618643A (en) | A kind of big specific capacity buoyancy adjustment, emergency self-saving integrated device and submersible | |
| KR101349661B1 (en) | Buffer system for deep-sea mineral mining | |
| US20200166056A1 (en) | Pressure Compensation Device Designed for Underwater Applications | |
| CN103978497B (en) | Hydraulic drive type underwater emergency kickoff mechanism | |
| CN103921914B (en) | Escape capsule Connection Release device | |
| CN107719609B (en) | A kind of bathysphere for formula emergency self-saving of escaping unnoticed | |
| CN209209004U (en) | A kind of autonomous type underwater robot weight balancing device | |
| WO2023197958A1 (en) | Pressure-resistant cabin for deep-sea mobile operation apparatus, underwater mining vehicle, and underwater mobile robot | |
| CN102490875B (en) | Storm-resistant submerged floating control device and method for aquatic platform | |
| US3667415A (en) | Buoyancy control system for deep diving submersibles | |
| SE435706B (en) | DEVICE FOR INSTALLATION OF THRUSTER PROPELLERS | |
| CN214465191U (en) | Hydraulic power device suitable for application in deep water | |
| CN104458306B (en) | One dry and wet transfer test device under water | |
| CN204647510U (en) | The deep sea valve actuator of bladder bidirection press transient equiliblium compensation device | |
| CN209305805U (en) | Modularization buoyancy regulating device for deep-sea | |
| CN111103166A (en) | Full-sea deep macrobiosis sampler with pressure-maintaining storage and transfer functions | |
| CN216783821U (en) | Attitude adjusting device for underwater vehicle | |
| CN115009485B (en) | Underwater buoyancy adjusting system of glass pressure cover | |
| CN212047776U (en) | Underwater high-sealing lifting device | |
| Bai et al. | Design and experiment of deep-sea energy-storage buoyancy regulating system | |
| CN219382745U (en) | Automatic profile buoy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |